E.S.C. Smith (AES, Keravat), Bibliography of Cocoa in Papua New Guinea, PNG Dept of Primary Industry, Sep 1982
J.E. Moxon, LAES Bulletins in Simple English (Pests in Cocoa), n.d.
J. Wylik & R. Sims, Commercial Agricultural Production in PNG, n.d., c.1983
Cocoa, Port Moresby, Dept of Agricutture and Livestock, Farming Notes No.23, revised edition 1992 by Colin Benton and Jane Belfield (CQIP)
Resident Commissioner's Office: Correspondence with Pukapuka Resident Agents
National news bulletin, March 1980
National news bulletin, April 1980
National news bulletin, June 1980
National news bulletin, September 1980
National news bulletin, May 1981
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